Ad
related to: ocean trench formation diagram pdf free download 336 pages printable templatewiki-drivers.com has been visited by 100K+ users in the past month
Search results
Results From The WOW.Com Content Network
Oceanic crust is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at trenches. Oceanic trenches are prominent, long, narrow topographic depressions of the ocean floor. They are typically 50 to 100 kilometers (30 to 60 mi) wide and 3 to 4 km (1.9 to 2.5 mi) below the level of the surrounding oceanic ...
Download as PDF; Printable version; In other projects ... Pages in category "Oceanic trenches" The following 6 pages are in this category, out of 6 total.
Category: Oceanic trenches by sea or ocean. 7 languages. ... Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. Help
Diagram of a cross-section of the Patagonia slab window. The Nazca plate and Antarctic plate are colliding with the South American plate at the Chile Ridge. [1]In geology, a slab window is a gap that forms in a subducted oceanic plate when a mid-ocean ridge meets with a subduction zone and plate divergence at the ridge and convergence at the subduction zone continue, causing the ridge to be ...
The Mariana Trench is the deepest known submarine trench, and the deepest location in the Earth's crust itself. [38] It is a subduction zone where the Pacific Plate is being subducted under the Mariana Plate. [3] At the deepest point, the trench is nearly 11,000 m deep (almost 36,000 feet).
The subduction of bathymetric highs such as aseismic ridges, oceanic plateaus, and seamounts has been posited as the primary driver of flat slab subduction. [3] The Andean flat slab subduction zones, the Peruvian slab and the Pampean (Chilean) flat slab, are spatially correlated with the subduction of bathymetric highs, the Nazca Ridge and the Juan Fernandéz Ridge, respectively.
The relative movement of the plates typically ranges from zero to 10 cm annually. Faults tend to be geologically active, experiencing earthquakes, volcanic activity, mountain-building, and oceanic trench formation. Tectonic plates are composed of the oceanic lithosphere and the thicker continental lithosphere, each topped by its own kind of crust.
The approxiamate area of deep-focus earthquakes mentioned in the page text that may be associated with the old subduction at the trench is shaded light red. The Vityaz Trench (also known as the Vitiaz or East Melanesian Trench [ 1 ] ) is an oceanic trench tectonic feature of the South West Pacific Ocean floor.